Door-operating device for cars.



A. GHRISTIANSON.

DOOR OPERATING DEVICE FOR CARS.

APPLICATION FILED 0013.1, 1909.

Patented Feb. 1,1910.

3 SHEETS-SHEET 2.

0m Mm N UE INVENTOR.

WITN ESSES.

A. CHRISTIANSON. DOOR OPERATING DEVICE'FOE CARS. APPLICATION NLRB 001:.1, 1909. 947,793. Patented Feb. 1,1910.

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I FIGII 3 mvslwomy WITNESSES.

ating mecha-Hism;, 1nay be applied'to any suit;

i able oonstructiomofcer. In the form? ofcar illustrated, the doors 7?extend longitudinally oft-he car, and open downwardly, Isa-id doors e Toall zohom it concern:

son, n-reside nt of Butler, in the. county of ;,at the same. time sosupporhtthe doors that is ajlongitugline lw section of a car with my 30plan 'view, partly-broken away to show the e0,nneetinifi up v the carandthechamilO \ifut the opposite side.

tom or other csrs in which there are dowrn ewardly opening doors, itsobject being to ":lieved when the doors are-closed,

ginerztlly I; stated, a downwardlyswinging car-door, a fluid operatedcylinder; flexible connectionsieu locking member carried by sa dflexible connections, and meansfor] rethe sides 2 and end floor plates3, the hopper UNITE s rle ihs esteem uterine eunnnw onms 'rmxtson, orBUTLER: rniii ise'iivnmn, Assien'on- To s ren-men scene-L CARCOMPANY-,0]? mr'rseoiee, PEQINEEYLVANIAQ n ooneonnnion' on run-u-S'YLVANIAM i i i 'noonioe iemrmevnnwo nmflgg Syieeification iif .httei's Patent. 5ummmme min m; s g iiu o leiea amen, isoel s riai nq.seems; v

employed the seine reference nuinersls for Be 1t knownfthat 1, ANDREWthe duplicate parts. The chains}? and pass over sheaves or drums I2 and13 the sheaves 12 being mounted. in the sills 5, and

ci-mls'rigix- Butler gand State of Pennsylvania, hate in vented-e newand useful Improvement in Door-OperatingQDevioes for- Cars; and I dohereby declare the following to be vn full, clear, and exactdescriptiohthereof. My inyention relates to car-door operat-1ng.mechanism.'. f i .v A

The object of invent-ion is to protide a? door operating mechanism forhoppet-bot- 14; The cover-plate l5 provided with the opening lfythroughwhich the chaius vq and .10 pass to the points where 'theylnre connectedto the doors.

Connected to the chains 9 and lOlis the locking-member 17 which may becomposed of the casting 18 having the lugs 19 to re} ceive the ends ofthe chains 9 and 10,411ldgh0 which said chains are secured The lockingrriembsrlS is provided with the truunions 20 which areedapted toengagesbutments or shoulders 2101 the'brackets. 2'22, which are boltedor otherwise seeured to-thecover plate 23 on the sills The bracketsQQextend to apoint udjaeent to the sheave 13 "and the upper edges ot sai dbrackets formv sup? port or guide-for the trunnions 2Q=when thelocking-member 18 isreleased andsiiid looking-member is drawn towardthe. 'sheeye 13 when the door is open. The chain 24: is'eonnectedto'the"locking-member 183ml suid chainpasses around the ShQaYB 25 21ndis se cured at its opposite endto, the supportgfi bolted to thecover-plate 23. ,The sheave is mounted in the clevis-end 27. of the'iiston rod 28. The flanges '29 of the sheaves 25 are adapted to engagethe hubpoTtionsBO ofthe casting 18 otthe looking-member for t, v thepurpose of releasing said look ingunenilibel-ve illustrat ed' lnyinvention in connecher as fully hereinafter set forth. The pistiomwithla hopper-bottom car composed of l tronrod 28 has the piston 31whichmoves ui the cylinder 32 which is supported nnny suitable manner oras illustratecl,'.upon the si1 ls,;5 Pipes 33 and 34; lead to oppositeends o f the cylinderSQ illldfiillgtPlPfBS are carried; :arpuiid to theside of the 1 31; where th y-em qene dun to t t m d 3%, conneetionsjfronrpipes 35 and 3'6 b e ng nade te ouw 1 nd motive fluid ,will. hevean equal distance to travel in passin tofit h e cylindersfgi at theprovide for the quick and efiicient operation of the doorswithoutany-lnanual labor, and,

the; strain on the operat-ingeinechanisn is rez f vo these ends myinventionfcoinprises,

leasing-5nd securing said locking member by, ,the'grm'oyement of thespistoni A said cyllmthelaccompen n rawingsf Figure 1 invention applied,thereto; Fig. Q is a like isan enlarged detail plan View.

plates L-thelsillsfi and the bolsters 6. These 1 features, however-,1form no part of my pres; entginv-ntlon, and my nnproiied .door $019. 1

being'engaged at- 8 tosthe car-body. .These doors; are braced andstrengthen ed by-press: ing 11bS;tllI80 Il and in other ays, as ma yopposite ends qof the oar," and providing for ne t p t e-the sim y-@1 9endsnofithe llooi ie pee i guvmzts are duplicated at ea 11 end not: thecar I have the sheaves 13'beinginounted in the struts s "prmr e wb eh sW vTportion ofthe cehsothht the 1 rods 28 are advanced and at the sametime,

the sheaves 25. The movement of the sheayes with their flanges moving incontact w th Just as soon as the locking-members have been raisedsuflieientl to free the trunnioned.

'portionsQO, the weig t of the lading bearing against the doors of-thecar will draw the sheave 25, andthe pistons, the doors dropping totheposition indicated in dotted lines,

ig. 3. The onlypower requiredto operate the device is that required tomove the sheave 25sufliciently to release the locking-member when theweight of the lading supplies the necessary wer to open the doors to thefull extent. ll lien it is desired to close the doors, the valve 37 isoperated so 'as to admit the fluid to the front end ofthe cylinder 32through the pipe 34, the exhaust taking place through the pipe 33.- Thereturn movement of the pistonwill act to draw up .the 'doors to theirclosed position, and their-locking-member .will be moved back intoposition so .that its trunnioned' portion 20 engages the shoulder 21 andjust'as soon as that takes lace, the weight of the doors, togetherwith-the lading is carried by the locking member and the strain ofsupporting the doors in no way falls on the cy inder'32, so that nomotive fluid is required to'hold the doors in their closed It is obviousthat many changes may be made in the parts of my invention which willnot aflect its broad scope, and I wish to include any such changes ormodifications which are-clearly within the broad scope of the claims. 7

'What I claim as inyinvention is:

' 1. In a car-door operat-in mechanism, the combination of a swingingoor, a fluid operated cylinder, flexible. connections between said doorand cylinder, a lockin member carried by said flexible connections, and

means for releasin said locking-member bythe movement of the piston ofsaid c linder.

2. In a car-door operatin meohan1sm,th'e combination of a swinging foor,a fluid operated cylinder,

. porting the entire weight of the doors, and

said locking-member by means for'releasinfi e piston of said cylinder.

the movement of t 3. In a car-door operatin mechanism, the

flexible connections between said docs, and cylinder, a locking-membercarried bIv said flexible connections and sup:

ated cylinder, said door and cylinder, a locking-member member-1b the sad c hn er. 1

4. n a car-door operatin mechanism, the

movementof the piston of combination of a swinging oor a fluid operatedcylinder flexible connect-ions between said door an cylinder, atrunnioned locking-member carried by said flexible connections, anabutment with'which said lockingmember engages, and means for releasing'saidI-ilocking-meniber by the piston of said cylinder.

locking-member iorward, together with the 5. In a car-door operatinmechanism, the

combination of a swinging oor flexible-con IIGCtIOIIS between said-dooran locking-member carried by said flexible connections, a movablesheave, and means for- -releasing said locking-member by-the movement ofsaid sheave. v

6., In a car-door operati -mechanism, the

, combination of a swinging oor, flexible concylinder, :1

nections between said door and cylinder, a

'loeking member carried by said flexibleconnections, a movable sheave,said 'lockingmember being in the path of movement of a said sheave.

7. In a car-door operat-m mechanism, the combination of a swinging oor,flexible connections between said door and cylinder, a

locking-member carried by said flexible connections, a movable sheave,means for mov ing sheave, and means forreleasin V locking-member by themovement 0 said sheave. I i i 8. In a car-door operating combination ofa swingingoor flexible connections between said door an cylinder, alocking-member carried by said flexible. consaid mechanism, the

nections, a movable sheave, means formow ing said sheave, said lockin-member beingflo'g 1 en a ed, by flan of said said Iocking-mefiben.

I .9. Ina car-door'o mechanism, the combination of'a plurality o-swinging doors, a fluid operated cylinder, a locking-member, fl xibleconnections leading from opposite doors to said locking-member, asheave, 'flexible connections from the other side of saidlocking-member, passing 'around said sheave, connected to a rinanentsupport, connections between said sheave and piston of said cylinder,and means-for releasing said locking-member by the movement of saidsheave; 10. In" a car-door operating mechanism, the, combination of aswinging doora fluid eaveto release operated cylinder, flexibleconnections between saidv door and cylinder, ,a lockingmember .carriedby said flexible connections,

a movable sheave, connections between said sheave and piston of saidcylinder, and means for releasing said locking-member by t-he'movementofsaid'sheave."

11. In a car-door operating mechanism, the:

flexible connections between said sheave.

'eaayrea carried by said flexible connections, a momable sheave,connections between said sheave and piston of said cylinder, saidlockingmember being in the path of movement of 12. In a car dooroperating mechanism, the combination of a swinging door, flexibleconnections between said door and cylinder, a iocking-meinber carried bysaid flexible connections, trunnions on said locking 11181111 her, asupport having an abutment with which said trunnions engage, and guideson said support with which said trunnions engage when saidlocking-member is released.

13..In a car-door operating mechanism,

engaging the upper edges oi said support when said locking-member 1sreleased.

In testimony whereof, I the said ANDREW GHRISTIANSON have hereunto setmy hand.

ANDREV CHRISTIANSON. Vitnesses ROBERT C. TOTTEIII, J. F. WVILL.

which said trunnions engage, said trunnions

